From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
To: Frank Hunleth <fhunleth@troodon-software.com>
Cc: Will Newton <will.newton@gmail.com>, buildroot <buildroot@buildroot.org>
Subject: Re: [Buildroot] [PATCH 1/1] erlang: support builds when gcc __atomic_* exist
Date: Mon, 2 Aug 2021 14:55:44 +0200 [thread overview]
Message-ID: <20210802145544.62e46f99@windsurf> (raw)
In-Reply-To: <CA+-urNS33eBwcaCSTMAb690j7r2M4674MuPkDhEX1X=Qr7YYXQ@mail.gmail.com>
On Mon, 2 Aug 2021 08:46:37 -0400
Frank Hunleth <fhunleth@troodon-software.com> wrote:
> As you expected, a SPARCv8 build fails. I updated erlang.mk to pass
> linker flags to link to libatomic, but still received errors. The
> errors were of type:
>
> /tmp/cc1Mog0n.s:230: Error: Architecture mismatch on "cas [%g3],%g2,%g1".
> /tmp/cc1Mog0n.s:230: (Requires v9|v9a|v9b|v9c|v9d|v9e|v9v|v9m|m8;
> requested architecture is v8.)
>
> I ran out of time this morning to track this down (sorry), but it's
> sounding like Erlang is doing something that's not causing function
> calls into libatomic.
>
> Right now, I'm thinking that trying to be more generic about what
> platforms Erlang supports may not be worth it. I.e., change this:
>
> default y if BR2_i386 || BR2_x86_64 || BR2_powerpc || \
> BR2_sparc_v9 || BR2_arm || BR2_aarch64 || BR2_mipsel || \
> BR2_TOOLCHAIN_HAS_ATOMIC
>
> to
>
> default y if BR2_i386 || BR2_x86_64 || BR2_powerpc || \
> BR2_sparc_v9 || BR2_arm || BR2_aarch64 || BR2_mipsel || \
> BR2_RISCV_64
>
> What do you think?
I'm fine with that. Note that it's also causing problems on other CPU
architectures:
http://autobuild.buildroot.net/?reason=erlang%
You will however see that even on ARM64 there are some failures in
erlang-jiffy.
Best regards,
Thomas
--
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
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prev parent reply other threads:[~2021-08-02 12:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-08 22:24 [Buildroot] [PATCH 1/1] erlang: support builds when gcc __atomic_* exist Frank Hunleth
2021-07-28 21:35 ` Thomas Petazzoni
2021-08-02 12:46 ` Frank Hunleth
2021-08-02 12:55 ` Thomas Petazzoni [this message]
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